Sobre a Lubrificação dos Compressores de AC
Lubrication
All A/C compressors need to be lubricated in some way, whether they're pumping freon or air. Most compressors are lubricated by the liquid freon that they pump. The York, on the other hand, has a separate oil reservoir that it uses to lubricate itself. This is the primary reason that York compressors are so popular for onboard air setups.
Non-York Compressors
Most compressors require oil to be injected into the air intake with an inline oiler available from any air tool supplier. After passing through the compressor, the oil is then filtered out of the air supply on the exhaust line before it reaches your tank or tires. Most air tool suppliers should carry oil/water separators. Some separators also have a drain that will allow plumbing the filtered oil back into the oiler intake, which eliminates the need to manually empty the separator and refill the oiler periodically.
York Compressors
The standard York has an oil fill/check hole in the center of each side of the compressor body. They're plugged with a bolt with a 1/2" hex head and sealed with a rubber O-ring. The York I got from a Ford had one of those holes permanently plugged (that side was unreachable in the factory mounting location), so only the right side hole was usable. When fully filled, a York used as an air (not A/C) compressor requires 8-10 ounces (237-296 mL) of oil.
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